Loom-shuttle.



Patented Nov. 4 |902.

H. LINDSAY. LOOM SHUTTLE. (Applicntin mea'Apr. 21, 1902.)

I(No Model.)

Lzl/'novf MMM @eeh/5f UNITED STATESZ PATENT @'Ornicn.

HAMILTON LINDSAY, on GLENvILLE, OHIO.

LOOM-SHUTTLE.

SPECIFICATION forming part of Letters Patent No. 712,817, dated November 4, 1902.

`Application tiled April 2l, 1902. Serial. No.- 103,877. (No model.)

2'0 ML w/wm, it muy con/cern:

Be it known that I, HAMILTON LINDSAY, a citizen of the United States, residing at Glenville, in the county of Cuyahoga and State of Ohio, have invented a certain new and useful Improvementin Loom-Shuttles, of which the following is a full, clear, and exact description, reference being had to the accompanying drawings.

In many looms the shuttlein its to-and-fro movements rides on a track one edge of which is closed to the reed, as indicated by dotted lines in the drawings. Considerable difficulty is experienced, especially if the track is long, in keeping the shuttle on the track or in getting the shuttle to go straight for the opposite shuttle-box, and this difficulty is increased if the track, as sometimes is the case, is inclined'down from that edge at which the reed is located.

The object of this invention is to provide a shuttle which will keep itself on the track and will hold itself against the reed as a guide, wherefore it will go straight into the opposite shuttle-box after its passage across the loom in both directions.

The invention consistsin a shuttle supported on rollers located at or nearits ends, which rollers are mounted on transverse axles secured by vertical pivots to one side of the shuttle, but engaging with the other side of the shuttle in such wise that saidaxles may move toa limited extent only about said pivots, the'result being that the said axles of. the rollers will automatically assume such positions at like angles to the true transverse plane as will cause the shuttle to run toward or hold itself at one edge of the tracknamely, that edge at which the reed is located. I

The invention also consists in the means substantially as shown for mounting the rollers on the axles, so as to minimize the friction incident to 'their rotation.

In the drawings, Figurey 1 is a bottom plan view of a shuttle embodying my invention. Fig. 2 is a transverse sectional view of the shuttle right side up in the plane indicated by line 2 2 of Figrl. Fig. 3 isa similar sectional view in the plane indicated by line 3 3. Fig. 4. is a bottom plan view ofv one vofthe `near the ends of the shuttle.

'actual use.

rollers and its axle and the adjacent sides of Vthe shuttle, the last-named parts being sectioned.

shuttle.

Referring to the parts by letters, A represents the shuttle', which may be ofI any suitable forme-for example, as shown, vconsisting of two sides o. a', two conical ends a2 a3,

the cross-bars a4, the bobbin-holder a5, and the spring-latch E for holdingl the latter in place. B B represent two rollers rotatably mounted upon the axles D D and located Each axle is pivoted to the side a of the shuttle on the vertical pivot C. The other end of the axle enters a recess a6 in the opposite side d of the shuttle, which recess is opened at its bottom and contains, preferably, a hardened box F. Thev widthof this recess of box, into which the end of the axle projects, is somewhat greater than the diameter of the'axle, wherefore obviously it is possible to swing the axle on its pivot, so that -it shall occupy a position slightly inclined to the true transverse line,rbut on either side thereof. Both axles are similarly connected with the shuttle.

When the shuttle, supported on rollers mounted on the described axles, is moving along the track provided for it inthe direc- -tionindicated 'by the arrownear the top of Fig. 1, the free ends of the axles will be dragged rearward. The result of thus inclining the axles will be a tendency on the part of the shuttletoinove toward the reed of the lay when the shuttle is operated in the usual way. This is, as a matter of fact, toward the left if the shuttle is turned over as it is in When theshuttle is traveling in the reverse direction, these axles will swing in the opposite direction, the result being a disposition on the part of the shuttle 'to move inthe same direction-that is,.over toward the same side of the supporting-track. This action of the axles takes place automatically whenever the shuttle is impelled in either direction and causes the shuttle to move over toward that edge of the track at which the reed is located and against that reed, where- The rollers B B are mounted on ball-bearings on these axles D D'. Each roller, the central part of which may be made of metal, has an axial hole which is rabbeted out at each end to form the annular recesses b, which serve as one partof a ball-raceway. On that end of the axle near its pivot is a fixed cone d, which forms the other part of the adjacent racing. The opposite or free end of the axle is screw-threaded, and an adjustable cone d is fitted to this screw-threaded end. This screw-threaded end is not a true cylinder, but

preferablyits sides are flattened off, as shown in Fig. 6. A disk G, with a serrated edge, fits upon this flattened part of the axle, and a pin d2, secured to the cone d, enters the serrations, and thereby the cone is prevented from rotating. A jamnut J screws onto the end of the axle against this adjustable disk and holds it in operative position. Rows of balls H occupy the ball-raceways, formed as described.

Having described my invention, I claim- A shuttle combined with rollers which are mounted thereon and are adapted to support it, and mechanism intermediate of said shuttle and rollers which permits the rollers to automatically assume positions wherein their axes are at au angle to a truc transverse line, substantially as and for the purpose specified.

2. A shuttle combined with two axles pivoted to the same side thereof on substantially vertical pivots, supporting-rollers mounted on said axle and having a horizontal movement on said vertical pivots and shoulders limiting the movement of said axles on their pivots for the purpose specified.

3. A shuttle combined with two axles pivoted to the same side thereof on substantially vertical pivots, supporting-rollers mounted on said axle and having a horizontal movement on said vertical pivots, and shoulders limiting the movement of said axles on their pivots, and ball-bearings between said rollers and their axles.

4. A shuttle combined with two axles pivotcd to the same side thereof, each axle having aixed cone near its pivoted'end and having its other end threaded, a roller embracing each axle, a cone screwing onto the threaded end of each axle and having a retainingpin b2, a serrated disk on eachv axle, means for preventing the rotation of said disks, and jam-nuts screwing onto said axle, substantially as specified.

In testimony whereof I hereunto afx my signature in the presence'of two witnesses.

HAMILTON LINDSAY.

Witnesses:

E. L. THURsToN, E. B. GILoHRrsT. 

